It lands in the inbox on a Tuesday morning.
It appears to come from the CEO. The name is correct. The wording feels polished. Even the signature seems legitimate.
"Hey — can you help me with something quickly? I'm stuck in back-to-back meetings and need you to take care of a vendor payment. I'll fill you in later."
The new hire hesitates.
They've only been with the company for four days. They're still learning the workflow. They don't yet know what's typical, and they certainly don't want to be the person who challenges the CEO in week one.
So they step in and do it.
And just like that, the breach begins.
Why week one is the highest-risk window
Every spring, organizations welcome a fresh group of employees, many of them recent graduates and summer interns starting their first professional roles. For the business, it's onboarding season. For attackers, it's prime hunting season.
Keepnet Lab's 2025 New Hires Phishing Susceptibility Report shows that CEO impersonation emails are 45% more likely to work on new hires than on experienced employees.
Cybercriminals don't always target your most experienced staff. They go after the people who are still trying to understand how everything works, because the opening days of employment are full of uncertainty.
A new employee may not know what a routine request looks like. They may not recognize how the CEO normally communicates. They haven't had time to build judgment or confidence yet, and attackers exploit that gap.
But the real issue isn't the new hire. The biggest risk isn't someone who is careless. It's someone who wants to be helpful.
If you lead a team, you probably already know exactly who would answer first.
The problem isn't just training. It's the environment.
Now picture that employee's first day.
The laptop wasn't ready. Access wasn't fully provisioned. The email account was still pending. They used someone else's login to complete a quick task. They saved a file to the local drive because the shared folder wasn't available. They checked a client number on their personal phone because it was faster.
None of that felt unsafe. It felt efficient. It felt like doing whatever was necessary to keep moving on a chaotic first day.
But during that first week, while systems are still coming together, several risks quietly stack up. Shared credentials create untracked access, files escape your backup coverage, personal devices touch company data, and nobody explains what to do when something seems suspicious.
The same Keepnet report found that new employees are 44% more likely to fall for phishing than tenured staff. That difference isn't about recklessness. It's about disorder. When onboarding is messy, security becomes an afterthought. That's the kind of workplace a phishing email is designed to exploit.
The attack didn't invent the weakness. The first day exposed it.
What a secure first day actually looks like
Solving this doesn't require a long-winded security lecture on day one. It requires three essentials to be in place before the employee arrives.
1. Their access is set up properly, not patched together.
That means the device is ready, credentials are created, and permissions are clearly assigned. No shared logins, no temporary fixes, and no "we'll handle that later this week."
2. They understand what normal looks like inside your company.
This can be a fast 10-minute conversation. Does the CEO ever email about payments? Does anyone? What should they do if something feels suspicious? This isn't formal training; it's practical orientation.
3. They know exactly where to turn with questions.
The employee who paused before opening that email probably would have asked for help if they knew who to contact. Most first-week mistakes happen quietly because new hires don't want to appear inexperienced.
Give them a person. Give them a clear process.
Most security failures don't happen because someone ignores the rules. They happen because no one has explained the rules yet.
Maybe your onboarding process is already strong. Maybe your team is small enough that new hires get a more personal introduction than a formal one. But if you've ever watched someone improvise their way through week one — or if you're planning to hire this spring — it's worth addressing before that Tuesday morning email shows up.
Click here or give us a call at 503-210-5203 to schedule your free Systems Assessment.
And if you know another business owner preparing to hire, pass this along. The smartest time to secure the door is before anyone gets the chance to open it.
